Excavating, hoisting, dumping, and conveying apparatus



H. E( SATRE Mayy 14, 1935.

EXCAVATING, HOISTING, DUMPING. AND CNVEYING APPARATUS Filed May 5, 1934 5 Sheets-Sheet l May 14, A1935.

H. E. sATRE EXCAVATING, HoIsTING, DUMPING. AND CQNVEYING APPARATUS Filed May 5, 1934 5 Sheets-Sheet 2 May 14, 1935. H. E.`sATRE I 2,001,502

EXCAVATING,' HOISTING, DUMPING. AND CONVEYING APPARATUS Filed May 5, 1934 5 Sheets-Sheet 3 May 14, 1935. H. 5.5mm; 2,001,502

EXCAVATINQ, HOISTING, DUMPING. AND CONVEYING'APPARATUS Filed May 5, 1954 5 Sheets--Sheecl 4A May 14, 1935. H. E. SATRE 2,001,502

ExcAvATlNG, HoIsTING, DUMPING. AND CONVEYING APPARATUS Filed May 5, 1934 5 sheets-Sheet 5 Patented May 14, 1935 EXCAVATING, HOISTING, liUltlllINGr, ANDV CONVEYING yAPPARATUS Hilmar E. Satre, Chicago, Ill., assignor,"by mesne assignments, to Spencer, White & Prentis,

Incorporated, New York, N.

of Connecticut Y., a corporation Application my 5.1934.. semi No. A'124,129

12 claims. (c1. 25a-21) The presentv invention pertains to excavating, hoisting, dumping and conveying apparatus, the

several parts adapted for cooperative operation,

particularly in the digging of deep holes of .vary- 5 ing diameter extending from .the surface down to.

vated materials,l dumping and conveying to a remote point of disposal, and liningv the hole isaecomplished without laborers entering the excavation and being subjected to danger of personal injury from cave-in, gas, falling objects or other-y wise.

In order that the invention mayl be readily understood' a typical'embodiment of apparatus involving the invention is hereinafter described i with reference to'the accompanying drawings; it being understood that the invention may be embodied in othervariedstructural forms without departure from"`the essence thereof, wherefore the invention is not to be restricted othe i0 than as required by the vprior art. 'f 4 In the drawings, y" I Fig. 1 is a side elevation of the machine in operative position; f

Fig. 2 is an enlarged view in perspective illustrating the hopper end of the conveyor and the cooperating loading apron; e n

Fig. 3 is a top plan view of the conveyor and itspdriving mechanism;

Fig. 4 isl a fragmentary detail of the clutch mechanism operatively connecting the rack and pinion drive of the conveyor;

Fig. 5 is a detail plan of the-main countershaft partially in section; a r

Fig. 6 is a front end elevation of the machine illustrating the lowering of the temporary caisson liner;

Fig. 'l is a top plan illustrating the various mechanical devices comprising the machine;

Fig. 8 1s an enlarged side elevation of the conveyor and tractor operating mechanism;

Fig. 9 is a vertical transverse section'through the conveyor; and

Fig. 10 is a vertical section illustrating the clutch `and worm gear drive for the conveyor.

' The characteristic features entering into the portion of the apron embrace the lead shaftl I5.

machine assembly are the boring auger or bucket II provided with bottom cutters I2 carried Vby hinged lower doors I3 and with side cutters Vor reamers Il. The construction -in detail of. the boring lauger II forms no essential part of thev 5 present invention, being `set forth and claimed in a copending application directed thereto. Sufficeit to4 say vthat the loosened soil enters the, interior of the bucket through bottom and side openings and is periodically hoisted when filled 10, in order that the excavated material may be dumped and the auger returned for further bor-. ing and removal of material. t v

Rotary; movement is imparted totheauger and it is guided'in its progress by alead shaft I5 '15 having a bit I6 formed at the lower end thereof and upon diametrically opposite sides with keys I6a-which-engage corresponding keyways I1 in the auger whereby kto permit of relative vvaxial movement of thetwo while` preventing relative angular movement and thus forcing they auger to rotate with the lead shaft. {This shaft forms no essential part oi.' the present invention, being set forth and claimed in a copending application f 25 It will be understood that the leadshaft I5 is not removed from the hole until the digging oper- 'ation' is completed, the same-advancing downwardly by reason kof rotary motion imparted thereto supplemented by its own weight vand built up in sections, at its upper end as the digging progresses, but that the auger is periodically elevated along the lead shaft to empty its load of excavated material.

When the auger reaches a position above the 3 5., f surface of the ground the apron I8 is suspended at its rear end by means of chains I9 hooked over the edge of the auger while the forward end of the apron is engaged by means of the hooks 20 over the upper edge of the adjacentrear wall 2| 40 of the hopper 22. The forward edge of the apron is notched at 23 and the rear wall of the hopper is also notched at 24 so that by these two notches the rear of the conveyor hopper and the forward Thereupon a` slight additional upward movement of the auger causes the hinged doors to be tripped by contact of the latching mechanism with the abutment posts 25 causing the doors to open 50 and the load of excavated material to be deposited inthe apron I8'. f A manua1 tilting of the apron slides the material into the hopper 22 and Vthis may be assisted by means of a scraper or other suitable means; whereupon the chains I 9 55 fthe hopper V22 `upon the traveling conveyor beltKV 26 is transported to a point of deposit remote Y The opposite end of the conveyor frame 31 has are released from the auger the apron removed.

At the same time the conveyor-supporting frame is moved slightly away from the excavation sufficiently to allow the auger again to descend into the hole andthe material deposited in from the hole. n excavations for which the present 'Forming of apparatus is particularly adapted'contemplates'A the temporary lining of the hole by a metallic casing or liner .21 of substantially the same exterior' diameter as the hole being dug and of suiiicient. interior diameter to permit the raising and lowering of the auger within the liner when v the side cutters or reamers are retracted. This liner preferably comprises multiple units each superposed upon the one immediately beneath and they gradually sink as the digging progresses so that the lower edge of the liner lies in the zone-of the diggingoperation. This liner progressively built up from above is removed after the completion of they boring and as the hole is.

filled from the' bottom upwardly by concrete deposited therein `through the liner. 'I'he lowermost unit of ,thel liner is connected by means of cables tothe power mechanism above the surface whereby the liner is lifted. and the-'upper units removed individual-1y as they reach the surface.

'I'he structural 'details of the liner form no essential part ofthe present invention and are set forth and claimed in a copending application.- 4From theV above general descriptionit will be seen that the workproceeds with practicallyno interruption. After the dumping ofthe auger contents into the hopper 22,'the auger again descends and renews the boring operation which continues while thedumped material is `carried away by the conveyor so that the two operations are concurrent 'and the dumping of theauger contents and the movements of the conveyor are in timed relation and the whole apparatus requires'a minimum of supervision and attention.

By reference to Figs. 1, 6 and 7 of the drawings it will be seen that the auger Il is suspended byfcables 28 traversing 'pulleys 29 and wound upon drums 30 whereby the said auger may be elevated and lowered, the attachment of the two cablesto the auger being at diametric points whereby to prevent tilting underunequal load which might cause binding upon the lead shaft i5.

Likewise it will be observed that the lead .shaft I 5 is suspended by a cable Il traversing the pulley r32 and wound upon the drum. whereby the lead shaft may be fed into the excavation as the digging progresses and removed therefrom when the work is complete, ready for depositing the concrete. f

The casing 21 is suspended by cables 34 atltached to opposite sides thereof as particularly shown inFig. 6 and these cables, traversing the pulleys 35, are wound upon the drums 36, whereby the liner may be withdrawn from vthe hole after the digging is completed vand as theconcretedeposited through the liner builds up from `the bottom of the hole.

The conveyor, best understood by reference to Figs. 1, 2,-3 and 8, comprises in general a frame formed of side members 31 having journaled therein and transversely thereof shafts 38 carrying rollers 39 coned at their ends as indicated' at 40. These rollers are arranged in spaced relation longitudinally of the conveyor and serve to .support the traveling belt a hinged section 31a connected by means of cables 46 traversing sheaves 41 and 48 to a take-up `roller 49 operated by a hand wheel 50 through a worm gear 5i, whereby the hinged section of the conveyorframe may be raised a greater or .less distance'for the deposit of the material upon ceive the excavatedgmaterial therefrominto the hopper 22 andagain to move the hopper .from beneathl the auger in ,orderpthat the `auger may be lowered into the hole for a new load, the, con- `veyor frame is arranged tobe bodily advanced and retracted ask shownv in full and dottedflinesl in Fig. 8` by means of the racks 52 and pinions 53, the latter also driven from thejcountershaft 43 by linterposed gearing.

It will be observedV that time as requiredwithout affecting the conveying ofthe materialupon theconveyor belt.l y

Rotary motion is ytransmitted to the lead shaft i5 by a bullgear l54 slidably keyed providedwith a central keyed aperture for accommodating said lead shaft. 'I'his bull gear is driven bymeans. of apinion 56 and the sprockets 51 and56 and. the sprocket chain 59 from the countershaft,

drive 43.

A single motor indicated at 60 furnishesy power for the driving of all lthe operating .parts ofthe,

apparatus from kthe main driveushaftv 6I'and suitable transmission gears,' sprockets, chains and the-"beduy movement" of theV conveyor towards andfrom a point above ,v the open Vend of the holefisA effected from time to.

other transmission media.y As here'shown there is included an air. compressor 62, water cooling system 63,fiy wheel 64, speed reducing gearv 65, levers for controlling the motor, for the air compressor,for the reducing gear,l for changes of speed, for operating clutches provided for engaging and disengaginggetc.y The-particular details of the power Ainstallation and transmission form no essential part oi the present invention'but may be modified in design as desired to adapt thesame to the operation of the several parts. I j

I claim: f

1. In a machine for digging caisson holes and the like, the combination oi' an earth auger adapted to dig the hole and receive the-excavated earth, means for lifting said earth auger. with a charge of excavated earth to a distance `above the surface of the ground, a conveyor for receiving said charge-of earth and delivering it yat a remote point of disposah and a-single power unit for operating said auger and conveyor in timed successive and concurrent relation. f f

2. In a machine for digging caisson holes and the like, the `combination of kan earth auger adapted toV dig the hole and receivetheexcavated earth, means for. lifting said earth auger with a charge of excavated earth toa distance above the* surface o1' the ground, a conveyor for receiving said charge `of earth and delivering it power means arranged to operate the digging and conveyor mechanism concurrently.

3. In a machine for digging caisson holes and the like, the combination of an earth auger vadapted to dig the hole and receive the excavated earth, means for lifting said earth auger with a charge of excavated earth to a distance above the surface of the ground, a conveyor shiftable lengthwise of the machine into position beneath said earth auger for receivingthe charge of earth and delivering it to a remote point for disposal, and power means for effecting the digging and conveying operations concurrently.

4. In a machine for digging caisson holes and the llike, the combination of an earth auger adapted to dig the hole and receive the excavated earth, means for lifting said ea'rth auger with a charge of excavated earth to a distance above the surface of the ground, power means for actuating said earth auger, and a conveyor operated by said power means for receiving said charge of earth and delivering it to a remote point for disposal.

5. In a machine for digging caisson holes and the like, the combination of an earth auger adapted to dig the hole and receive Athe excavated earth, means for lifting said earth auger, with a charge of excavated earth to a distance above the surface of the ground, a conveyor operated by said power means for receiving said charge of earth and delivering it to a remote point for disposal, and power means for operating the auger and conveyor concurrently.

6. In a machine for digging caisson holes and the like, the combination of an earth auger adapted to dig the hole and receive the excavated earth, means for lifting said earth auger with a charge of excavated earth to a distance above the surface of the ground, power means for actuating said earth auger, and a conveyor shiftable by said power means into position beneathsaid earth auger for receiving the charge of earth and delivering it to a remote point for disposal.

'7. In a machine for digging caisson holes and the like, the combination of an earth auger adapted to dig the hole and receive the excavated earth, means for lifting said earth auger with a charge of excavated earth to a distance above the surface of the ground, power means for actuating said earth auger, anda conveyor including a traveling belt driven by said power means for receiving said charge of earth 4 and delivering it to a remote point for disposal.

8. In a machine for digging caisson holes and the like, the combination of an earth auger adapted to dig the hole and receive the excavated earth, a lead shaft for,directing and assisting the auger, a temporary liner for the hole, means for rotating the lead shaft and with it the auger, means for raising and lowering the auger, a conveyor, means for positioning the conveyor beneath the auger when elevated above the surface, means for automatically dumping the contents of the auger onto the conveyor, means for shifting the conveyor bodily into position beneath the auger and withdrawing the same from said position, and means for operating the conveyor to carry away the material deposited by the auger, and a single power means for motivating the several guiding,

digging, lining, dumping and conveying elements.

9. In a machine for digging caisson holes and the like, the combination of an earth auger adapted to dig the hole and receive the excavated earth, a lead shaft for directing and assisting the auger, means for rotating the lead shaft and with it the auger, means for raising and lowering the auger, a conveyor, means for positioning the conveyor beneath the auger when elevated above the surface, means for automatically dumping the contents of the auger onto the conveyor, means for shifting the conveyor bodily into position beneath the auger and withdrawing the same from said position, and means for operating the conveyor to carry away the material deposited by the auger, and power means for Amotivating the several guiding, digging, dumping and conveying elements in such timed relation as to achieve concurrent operation of the digging and conveying mechanisms.

10. In a machine for digging caisson holes and the like, the combination of an earth auger adapted to dig the hole and receive the excavated earth and to be lifted with a charge of excavated material to a distance above the surface of the ground, a conveyor including a hopper shiftable lengthwise of the machine into position beneath said earth auger and above the hole for receiving the charge of earth and delivering it to a remote pointy for disposal, and power means to lift and lower and drive the auger and to shift and drive the conveyor concurrently.

11. In a machine for digg lg caisson holes and the like, the combination of an earth auger adapted to dig the hole and receive and discharge the excavated earth, a lead shaft for directing and driving the auger, means for lifting said earth auger along the lead shaft with a charge of excavated earth to a distance above the surface of the ground, and a conveyor for receiving said charge of earth and delivering it to a remote point of disposal, said conveyor including a hopper shiftable to a position beneath the auger and above the hole and adapted to partially embrace the lead shaft with its rear edge, and an apron movable towards and from the hopper at the opposite side of the lead shaft, said apron also adapted atits forward edge to partially embrace the lead shaft and together with the hopper to prevent excavated material from falling into th hole when discharged by the hopper.

12. In a machine for digging caisson holes and the like, the combination of an earth auger adapted to dig the hole and receive and discharge the excavated earth, a lead shaft for directing and driving the auger, means for lifting said earth auger along the lead shaft with a charge of excavated earth to a distance above the surface of the ground, and a conveyor for receiving said charge of earth and delivering it to a remote point of disposal, said conveyor including a hopper shiftable to a position beneath the auger and abovethe hole and notched at its rear edge vto receive the lead shaft, and an apron suspended to swing towards and from the hopper at the opposite side of the shaft, said apron also notched at its forward edge to receive the lead shaft and together with the hopper to prevent excavated material from falling intov the hole when discharged by the hopper.

HILMAR E. SATRE. 

